Filter.



PATENTBD MAR. 2,7, '1906.

w.A B. KLEIN.

FILTER.

APPLIGATION FILED Dnc. ze, 1905.

i TM entre srafrns erro PATENT Speccaton of Letters Patent.

Patented March 27, 1906.

Application filed December 26, 1905. Serial No. 293,288.

To all whom. it may concern,.-

Be it known that I, WILLIAM B, KLEIN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Filters, of which the following is a specification.

My invention relates to liquid-filters; and the invention consists in the construction and combination of parts substantially as shown and described,and particularly pointed out in the claims.

In-the filtering of beer it is frequently the practice to pass the beer through a primary filter, which serves to filter or strain out coarser impurities, and afterward pass the beer through a second filter called the polisher, thus giving a tandem and more perfect ltration.

The object of the present invention is to construct a filter of the ordinary shape and proportions which is capable of performing the two filtering operations by itself, one-half only of which it is necessary to cleanse in order to enable it to perform its functions` The filter of the present invention is constructed in two equal divisions or sections which correspond infunction to the primary and secondary filters hitherto employed and which enable the beer to be passed continuously through the filter and delivered therefrom in perfect condition without the necessity for additional filtering. The construction is one which enables either or both of the divisions of the filter to be employed singly or tandem and at the saine time serves to reinforce the filter as a whole and the component parts thereof.

In the drawings, Figure 1 is a vertical section of the entire filter; Fig. 2, a top or plan view of the dividing-wall, and Fig. 3 a crosssectional view of the division wall or late.

The filter as a whole is constructs in the usual manner, having an outer drum 1, closingcaps 2 at top and bottom, and pressin -heads 3, adapted to be actuated by screw-wlieels 4. The drum is divided into two substantially equal chambers 6 and 7 by `means of a circular division-wall 8 which is of suitable size to closely abut against the interior face of the outer drum and is symmetrically constructed on top and bottom. The division wall or plate is provided around its periphery on oth sides with circular flanges 9 of greater thickness than the body or web 10 of the plate, and the flanges provide a close abutment for the outer drum to fit against the division wall or plate. In'the center of the plate are circular sockets 11, having flanged walls 12, which are screw-threaded on their inner faces and are adapted to have entered thereinto bushings 13. Around the central flanges are concentric rings or flanges 13a, which are intended to prevent leakage to the center discharge-column. Leading from the sockets in opposite directions are outlet-ribs 14, one for each of the central socket-openings, which ribs are cored throughout their length and provide outlet-ducts 14a, leading outwardly to the periphery of the central plate or Wall. The outer surfaces of the ribs are flush with the peri heral flanges 9 to provide a supporting-sur ace for the inner filterplates, hereinafter described. The outlet passages or bores are separated from each other by means of a diagonally-extending cross-wall 15, which likewise separatesthe central socket-openings from one another, causing one of the bores or passages to open outwardly through the lower face of the division plate or wall and causing the other passage to open outwardly throu h the upper face of the division plate or wa l. In addition to the outlet-passages hitherto described are a pair of inlet-passages 16, which are formed in vribs 17, which extend at right angles to the cored outlet-ribs and are of substantially the inletassages are in the form of troughs 18, onefof which opens to the lower face of equal dimensions therewith, and i the cross wall or plate and the other of whidh is open to the upper face ofthe cross wall or plate. The inlet and outlet assages have entered thereinto valves 19 o suitable construction for controlling the flow of beer to and from the passages, and,'if desired, hose can be connected at one end to one of the outlet-valves and at its opposite end to one of the inlet ends for providing a continuous plassage for the beer from one section of the lter to the other. cured thereto sections of cylindrical pipe 21, which serve as receiving-columns for the discharge-openings, and said pipes lead from opposite directions to passages in opposite s ides of vision wall or plate.

N earthe outer wall of the filter is va'cylint' e central di- The bushings 13 have se- ICO the com anion outletdrical perforated wall 22, between which wall and the inner conveyer pipes or columns are arranged a series of outer circular filter-plates 23, abutting against the outer perforated wall plates being in the Jform of rings,the"outer iiiter-plates having a greater interior and eXterior'diarneter than the inner iltereplates.

.Central ilter-plates 25 are provided, which -rest upon the radiallyeiitending ribs in the Icentral wall or plate and abut at their inner e des against the concentric rings 13. ln addition to the inner filter-plates innei` and outer end plates 26 and 27 are provided, the latter of which is of sufiicient diameter to eX- tend over substantiallyl the entire inner area of the filter and abut against the presserhead .23 in the usual manner. rllhe spaces between the filtei'- lates are filled with packing 28 of the usua character, and the plates are adapted tobe removed from the filter for the purpose of cleaning and packing.

ln use we may assume that the upper section of the iilter is intended Jfor the primary or ccarser iiltering and the lower section for the secondary or finer iltering, in which case the beer will be initially admitted through. the upwardly-opening inlet-passage in the center plate or Wall and will pass therefrom through the center ilteringplates 25 into the packing and also into the annular space bem tween'tlie outer drum and the outer perforated plate. The outer annular space serves as distributing-space for' the series of outer ltering plates oi' rings, the beer passing from the annular space back into and alongj A for the reason that the iiltercan acked the rin gs and being discharged therefrom into the packing, whence it finds 'its way into the inner filtering rings or plates and is conveyed through and along the plates to the upper cysindrical column, passing thereinto' through the perforated wall 2l. The beer in the upper cylindrical column is carried down intothe dischargapassage in the'central diyision wall or plate and 'through the, outlet-valve controlling such passage into the rubber pipe or hose, whence it is conveyed to the inletpassage for the lower section oi" the dfilter, which may be considered as the -polisher The operation vin the lower section of the filter is similar 'to that hitherto described with respect to the upper section, and after passing through the polisher the beer is delivered from the iinal discharge-outlet in completely-,-

filtered condition and ready for the aclage. ,After the operation above described as been continued 'tor a considerable length. of time the primary filter or rougher will become ouled or clogged to such an extent as to require cleansing, which cleansing can be performed by flushing out the primary or upper iilter. This flushing is performed by forcing water through the outlet-passage, reversing the. ilow through the filter, which serves to.

rinse out or wash out theimpuiities or sediment collected during the iltering operation. Eytrinsing out the upper section or rougher 5 daily the filter is enabled to perform its ,work` l by the bushing operation. c

sary to re ach the section of Filter used as the primary nlter or .siente tor a considerable space ci' time without reNr packing; but it becomes necessary from time to time to repack the filter in order to remove dirt or sediment which cannot be washed out .it is only neces- I rougher, which repacliing can be done by reineving the closing-head for the upper section of the ilterl and taliing out the packing and lter-plates therein preparatory to a secondary packing. After the upper section has been thus repaclred it is advisable to reverse the filtering operation and use the section oi the tilter which had previously been used as the olisher for the primary ondary or finishing operation to be performed by the section of ifilterfreshly packed. Such impurities or sediment as have been collected in the polisher will ,not impair the subsequent operation oi' the polislier as a rougher, while it is always desirable that the olishing .operation be performed by a i'es y-paclred section ot the filter. lt will be understood that both sections or halves of the ilter are con. structed and bperated in exactly the saine' manner and that either. onemay' be used as a pol'islier or as a rougher and that in reversing the filtering operation hitherto referred tono change or modificatlon of the filter or the divisions thereof is required By constructing the filter as above s eci fied the .packing operation much simp -'i'ied from either end without the necessity or disarranging the packing of the other end. In other'words, one section of the filter can be.

continuously operated while ine other section is bei-ng packed The. packing operation is further simpliied for the reason that c the de th of each of the sections is equal t only one-hali1 of the lentire lter, so that it "s not necessary to work down' into the ilterto the extent necessary `in packing tilt ers of the ordinary type.

lt will be observedv thatthe two sections of the filterserve as two divisiomlters' which may be operated either independently er tandem, the beer being conveyed continuously through the two 'sections when desired and being discharged therefrom in nislied condition. The arrangement 'of `passages in the central 'plate or wall is one which provides an easy and convenient means for securing the' valvesand connectin pipes to the filter, and the Wall itself Iaffor s a iirm reinforcement for the iilter in its center, which is necessary in packing the ends of the iilter independentlv The ribs in the plate serve to provide a rigid reinforcement for the plate and enable it to withstand the pressure oli the packing operation Without danger-oi breakage. i

lt will be understood that the particular style, shape, i body is immaterial, and that the present iniilteriiig operation, a lowing the seoor construction of the ilterfil vention relates more artcularly to the method of dividing the filter into two chambers or compartments and to the method of arranging the inlet and outlet passages therein rather than to the construction, location, and arrangement of the filter-plates, valves, and similar mechanism, which may be of any usual and well-known construction.

W hat I claim as new, and desire to secure by Letters Patent, is-

1. A iilter, consisting of a tank having in its center -a cross-wall provided with inlet and outlet passages on o posite sides of the cross- Wall opening int-o t e com anion chambers, filtering means in each of t e cha1nbersand a detachable connection between the outletpassage of one chamber and the inlet-passage of the companion chamber for operating the chambers independently or simultaneously, substantially as described. i 2. In a filter, the combination of a tank provided with a cross wall or platehavingsockets in its opposite faces, separated outlet-passages connecting with the oppositelydisposed sockets, oppositel -opening inletpassages in the central wa l or plate, perforated central passages in the companion chambers of the iilter entered into the oppotially sitely-disposed sockets, and packing surrounding tlie perforated central passages, substantially as described.

In a iilter, the combination of a tank provided with a cross wall or plate having sockets in its opposite faces, separated out-,V

let-passages connecting with the oppositelydisposed sockets, oppositely-opening inlet-" passages in the central wall or plate, perforated central passages in the companion chambers of the filter entered into the oppositely-disposed sockets, packing surroundlng the perforated central passages, and a detachable connection leading from the outlet from one of the chambers to the inlet of the companion chamber for enabling the chambers to operate mf ependently or 1n combina-l tion with one another, substantially as described.

4. In a filter, the combination of a substantially c lindrical tank having near its center a' circul7 dially-extending ribs, two of the ribs cored out to two other ri s bein sides ofthe Wall or p ate to provide in et-passages, oppositely-o ening separated central sockets one for eac of the outlet-passages, perforated tubes in the-companion'chambers ofthe filter entered into the oppositely-openin sockets, and packing surrounding the tu es, substantially as described.

5. In aV filter, the combination of a substancylindrical tank havin near its center a circular cross-wall provide with four radially-extending ribs two yot the ribs being cored out to rovide outlet-passages, and the two other rilis bein channeled on o posite sides of the wall or p ate to provide in et-passages, oppositelyopenin separated central sockets one for each of the outletassages, perforated tubes in the companion c ambers .0f the filter entered into the oppositely-opening sockets, packing surrounding the tubes, and a detachable connection leading from the outlet from one of the chambers to the inlet of the companion chamber for enabling the being chambers to operate independently or in com- '.bination with one another, substantially as described.

6. In a lter, the combination of a tank,`

removable caps or covers at opposite ends of the tank, a cross wall or plate havin therein separated outlet passages leading om the ar cross-wall provided with four rarovide outlet-passages, and thechanneled on olpposite divisions of the tank, central 1E.passages in the companion' chambers of the ter leading to the outlets, and packing surrounding the central passages, substantially as described.

. WILLIAM B. KLEIN. Witnesses:

WALKER BANNING, PAULINE BECKMAN. 

